diff options
| -rw-r--r-- | src/core/memory.cpp | 306 | ||||
| -rw-r--r-- | src/core/memory.h | 104 |
2 files changed, 81 insertions, 329 deletions
diff --git a/src/core/memory.cpp b/src/core/memory.cpp index f285c6f63..7b23c189c 100644 --- a/src/core/memory.cpp +++ b/src/core/memory.cpp @@ -1,11 +1,9 @@ -// Copyright 2015 Citra Emulator Project +// Copyright 2021 Citra Emulator Project // Licensed under GPLv2 or any later version // Refer to the license.txt file included. #include <algorithm> #include <cstring> -#include <optional> -#include <utility> #include "common/assert.h" #include "common/atomic_ops.h" @@ -14,12 +12,10 @@ #include "common/page_table.h" #include "common/settings.h" #include "common/swap.h" -#include "core/arm/arm_interface.h" #include "core/core.h" #include "core/device_memory.h" #include "core/hle/kernel/k_page_table.h" #include "core/hle/kernel/k_process.h" -#include "core/hle/kernel/physical_memory.h" #include "core/memory.h" #include "video_core/gpu.h" @@ -62,17 +58,7 @@ struct Memory::Impl { } } - bool IsValidVirtualAddress(const Kernel::KProcess& process, const VAddr vaddr) const { - const auto& page_table = process.PageTable().PageTableImpl(); - const auto [pointer, type] = page_table.pointers[vaddr >> PAGE_BITS].PointerType(); - return pointer != nullptr || type == Common::PageType::RasterizerCachedMemory; - } - - bool IsValidVirtualAddress(VAddr vaddr) const { - return IsValidVirtualAddress(*system.CurrentProcess(), vaddr); - } - - u8* GetPointerFromRasterizerCachedMemory(VAddr vaddr) const { + [[nodiscard]] u8* GetPointerFromRasterizerCachedMemory(VAddr vaddr) const { const PAddr paddr{current_page_table->backing_addr[vaddr >> PAGE_BITS]}; if (!paddr) { @@ -82,7 +68,7 @@ struct Memory::Impl { return system.DeviceMemory().GetPointer(paddr) + vaddr; } - u8* GetPointer(const VAddr vaddr) const { + [[nodiscard]] u8* GetPointer(const VAddr vaddr) const { const uintptr_t raw_pointer = current_page_table->pointers[vaddr >> PAGE_BITS].Raw(); if (u8* const pointer = Common::PageTable::PageInfo::ExtractPointer(raw_pointer)) { return pointer + vaddr; @@ -179,7 +165,7 @@ struct Memory::Impl { std::string string; string.reserve(max_length); for (std::size_t i = 0; i < max_length; ++i) { - const char c = Read8(vaddr); + const char c = Read<s8>(vaddr); if (c == '\0') { break; } @@ -190,15 +176,14 @@ struct Memory::Impl { return string; } - void ReadBlock(const Kernel::KProcess& process, const VAddr src_addr, void* dest_buffer, - const std::size_t size) { + void WalkBlock(const Kernel::KProcess& process, VAddr addr, const std::size_t size, + auto on_unmapped, auto on_memory, auto on_rasterizer, auto increment) { const auto& page_table = process.PageTable().PageTableImpl(); - std::size_t remaining_size = size; - std::size_t page_index = src_addr >> PAGE_BITS; - std::size_t page_offset = src_addr & PAGE_MASK; + std::size_t page_index = addr >> PAGE_BITS; + std::size_t page_offset = addr & PAGE_MASK; - while (remaining_size > 0) { + while (remaining_size) { const std::size_t copy_amount = std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size); const auto current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset); @@ -206,22 +191,18 @@ struct Memory::Impl { const auto [pointer, type] = page_table.pointers[page_index].PointerType(); switch (type) { case Common::PageType::Unmapped: { - LOG_ERROR(HW_Memory, - "Unmapped ReadBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", - current_vaddr, src_addr, size); - std::memset(dest_buffer, 0, copy_amount); + on_unmapped(copy_amount, current_vaddr); break; } case Common::PageType::Memory: { DEBUG_ASSERT(pointer); - const u8* const src_ptr = pointer + page_offset + (page_index << PAGE_BITS); - std::memcpy(dest_buffer, src_ptr, copy_amount); + u8* mem_ptr = pointer + page_offset + (page_index << PAGE_BITS); + on_memory(copy_amount, mem_ptr); break; } case Common::PageType::RasterizerCachedMemory: { - const u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; - system.GPU().FlushRegion(current_vaddr, copy_amount); - std::memcpy(dest_buffer, host_ptr, copy_amount); + u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; + on_rasterizer(current_vaddr, copy_amount, host_ptr); break; } default: @@ -230,199 +211,98 @@ struct Memory::Impl { page_index++; page_offset = 0; - dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount; + addr += static_cast<VAddr>(copy_amount); + increment(copy_amount); remaining_size -= copy_amount; } } - void ReadBlockUnsafe(const Kernel::KProcess& process, const VAddr src_addr, void* dest_buffer, - const std::size_t size) { - const auto& page_table = process.PageTable().PageTableImpl(); - - std::size_t remaining_size = size; - std::size_t page_index = src_addr >> PAGE_BITS; - std::size_t page_offset = src_addr & PAGE_MASK; - - while (remaining_size > 0) { - const std::size_t copy_amount = - std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size); - const auto current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset); - - const auto [pointer, type] = page_table.pointers[page_index].PointerType(); - switch (type) { - case Common::PageType::Unmapped: { + template <bool UNSAFE> + void ReadBlockImpl(const Kernel::KProcess& process, const VAddr src_addr, void* dest_buffer, + const std::size_t size) { + WalkBlock( + process, src_addr, size, + [src_addr, size, &dest_buffer](const std::size_t copy_amount, + const VAddr current_vaddr) { LOG_ERROR(HW_Memory, "Unmapped ReadBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", current_vaddr, src_addr, size); std::memset(dest_buffer, 0, copy_amount); - break; - } - case Common::PageType::Memory: { - DEBUG_ASSERT(pointer); - const u8* const src_ptr = pointer + page_offset + (page_index << PAGE_BITS); + }, + [&dest_buffer](const std::size_t copy_amount, const u8* const src_ptr) { std::memcpy(dest_buffer, src_ptr, copy_amount); - break; - } - case Common::PageType::RasterizerCachedMemory: { - const u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; + }, + [&system = system, &dest_buffer](const VAddr current_vaddr, + const std::size_t copy_amount, + const u8* const host_ptr) { + if (!UNSAFE) { + system.GPU().FlushRegion(current_vaddr, copy_amount); + } std::memcpy(dest_buffer, host_ptr, copy_amount); - break; - } - default: - UNREACHABLE(); - } - - page_index++; - page_offset = 0; - dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount; - remaining_size -= copy_amount; - } + }, + [&dest_buffer](const std::size_t copy_amount) { + dest_buffer = static_cast<u8*>(dest_buffer) + copy_amount; + }); } void ReadBlock(const VAddr src_addr, void* dest_buffer, const std::size_t size) { - ReadBlock(*system.CurrentProcess(), src_addr, dest_buffer, size); + ReadBlockImpl<false>(*system.CurrentProcess(), src_addr, dest_buffer, size); } void ReadBlockUnsafe(const VAddr src_addr, void* dest_buffer, const std::size_t size) { - ReadBlockUnsafe(*system.CurrentProcess(), src_addr, dest_buffer, size); + ReadBlockImpl<true>(*system.CurrentProcess(), src_addr, dest_buffer, size); } - void WriteBlock(const Kernel::KProcess& process, const VAddr dest_addr, const void* src_buffer, - const std::size_t size) { - const auto& page_table = process.PageTable().PageTableImpl(); - std::size_t remaining_size = size; - std::size_t page_index = dest_addr >> PAGE_BITS; - std::size_t page_offset = dest_addr & PAGE_MASK; - - while (remaining_size > 0) { - const std::size_t copy_amount = - std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size); - const auto current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset); - - const auto [pointer, type] = page_table.pointers[page_index].PointerType(); - switch (type) { - case Common::PageType::Unmapped: { + template <bool UNSAFE> + void WriteBlockImpl(const Kernel::KProcess& process, const VAddr dest_addr, + const void* src_buffer, const std::size_t size) { + WalkBlock( + process, dest_addr, size, + [dest_addr, size](const std::size_t copy_amount, const VAddr current_vaddr) { LOG_ERROR(HW_Memory, "Unmapped WriteBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", current_vaddr, dest_addr, size); - break; - } - case Common::PageType::Memory: { - DEBUG_ASSERT(pointer); - u8* const dest_ptr = pointer + page_offset + (page_index << PAGE_BITS); + }, + [&src_buffer](const std::size_t copy_amount, u8* const dest_ptr) { std::memcpy(dest_ptr, src_buffer, copy_amount); - break; - } - case Common::PageType::RasterizerCachedMemory: { - u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; - system.GPU().InvalidateRegion(current_vaddr, copy_amount); - std::memcpy(host_ptr, src_buffer, copy_amount); - break; - } - default: - UNREACHABLE(); - } - - page_index++; - page_offset = 0; - src_buffer = static_cast<const u8*>(src_buffer) + copy_amount; - remaining_size -= copy_amount; - } - } - - void WriteBlockUnsafe(const Kernel::KProcess& process, const VAddr dest_addr, - const void* src_buffer, const std::size_t size) { - const auto& page_table = process.PageTable().PageTableImpl(); - std::size_t remaining_size = size; - std::size_t page_index = dest_addr >> PAGE_BITS; - std::size_t page_offset = dest_addr & PAGE_MASK; - - while (remaining_size > 0) { - const std::size_t copy_amount = - std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size); - const auto current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset); - - const auto [pointer, type] = page_table.pointers[page_index].PointerType(); - switch (type) { - case Common::PageType::Unmapped: { - LOG_ERROR(HW_Memory, - "Unmapped WriteBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", - current_vaddr, dest_addr, size); - break; - } - case Common::PageType::Memory: { - DEBUG_ASSERT(pointer); - u8* const dest_ptr = pointer + page_offset + (page_index << PAGE_BITS); - std::memcpy(dest_ptr, src_buffer, copy_amount); - break; - } - case Common::PageType::RasterizerCachedMemory: { - u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; + }, + [&system = system, &src_buffer](const VAddr current_vaddr, + const std::size_t copy_amount, u8* const host_ptr) { + if (!UNSAFE) { + system.GPU().InvalidateRegion(current_vaddr, copy_amount); + } std::memcpy(host_ptr, src_buffer, copy_amount); - break; - } - default: - UNREACHABLE(); - } - - page_index++; - page_offset = 0; - src_buffer = static_cast<const u8*>(src_buffer) + copy_amount; - remaining_size -= copy_amount; - } + }, + [&src_buffer](const std::size_t copy_amount) { + src_buffer = static_cast<const u8*>(src_buffer) + copy_amount; + }); } void WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t size) { - WriteBlock(*system.CurrentProcess(), dest_addr, src_buffer, size); + WriteBlockImpl<false>(*system.CurrentProcess(), dest_addr, src_buffer, size); } void WriteBlockUnsafe(const VAddr dest_addr, const void* src_buffer, const std::size_t size) { - WriteBlockUnsafe(*system.CurrentProcess(), dest_addr, src_buffer, size); + WriteBlockImpl<true>(*system.CurrentProcess(), dest_addr, src_buffer, size); } void ZeroBlock(const Kernel::KProcess& process, const VAddr dest_addr, const std::size_t size) { - const auto& page_table = process.PageTable().PageTableImpl(); - std::size_t remaining_size = size; - std::size_t page_index = dest_addr >> PAGE_BITS; - std::size_t page_offset = dest_addr & PAGE_MASK; - - while (remaining_size > 0) { - const std::size_t copy_amount = - std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size); - const auto current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset); - - const auto [pointer, type] = page_table.pointers[page_index].PointerType(); - switch (type) { - case Common::PageType::Unmapped: { + WalkBlock( + process, dest_addr, size, + [dest_addr, size](const std::size_t copy_amount, const VAddr current_vaddr) { LOG_ERROR(HW_Memory, "Unmapped ZeroBlock @ 0x{:016X} (start address = 0x{:016X}, size = {})", current_vaddr, dest_addr, size); - break; - } - case Common::PageType::Memory: { - DEBUG_ASSERT(pointer); - u8* const dest_ptr = pointer + page_offset + (page_index << PAGE_BITS); + }, + [](const std::size_t copy_amount, u8* const dest_ptr) { std::memset(dest_ptr, 0, copy_amount); - break; - } - case Common::PageType::RasterizerCachedMemory: { - u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; + }, + [&system = system](const VAddr current_vaddr, const std::size_t copy_amount, + u8* const host_ptr) { system.GPU().InvalidateRegion(current_vaddr, copy_amount); std::memset(host_ptr, 0, copy_amount); - break; - } - default: - UNREACHABLE(); - } - - page_index++; - page_offset = 0; - remaining_size -= copy_amount; - } - } - - void ZeroBlock(const VAddr dest_addr, const std::size_t size) { - ZeroBlock(*system.CurrentProcess(), dest_addr, size); + }, + [](const std::size_t copy_amount) {}); } void CopyBlock(const Kernel::KProcess& process, VAddr dest_addr, VAddr src_addr, @@ -432,7 +312,7 @@ struct Memory::Impl { std::size_t page_index = src_addr >> PAGE_BITS; std::size_t page_offset = src_addr & PAGE_MASK; - while (remaining_size > 0) { + while (remaining_size) { const std::size_t copy_amount = std::min(static_cast<std::size_t>(PAGE_SIZE) - page_offset, remaining_size); const auto current_vaddr = static_cast<VAddr>((page_index << PAGE_BITS) + page_offset); @@ -449,13 +329,13 @@ struct Memory::Impl { case Common::PageType::Memory: { DEBUG_ASSERT(pointer); const u8* src_ptr = pointer + page_offset + (page_index << PAGE_BITS); - WriteBlock(process, dest_addr, src_ptr, copy_amount); + WriteBlockImpl<false>(process, dest_addr, src_ptr, copy_amount); break; } case Common::PageType::RasterizerCachedMemory: { const u8* const host_ptr{GetPointerFromRasterizerCachedMemory(current_vaddr)}; system.GPU().FlushRegion(current_vaddr, copy_amount); - WriteBlock(process, dest_addr, host_ptr, copy_amount); + WriteBlockImpl<false>(process, dest_addr, host_ptr, copy_amount); break; } default: @@ -470,10 +350,6 @@ struct Memory::Impl { } } - void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size) { - return CopyBlock(*system.CurrentProcess(), dest_addr, src_addr, size); - } - void RasterizerMarkRegionCached(VAddr vaddr, u64 size, bool cached) { if (vaddr == 0) { return; @@ -517,7 +393,6 @@ struct Memory::Impl { case Common::PageType::Unmapped: // It is not necessary for a process to have this region mapped into its address // space, for example, a system module need not have a VRAM mapping. - break; case Common::PageType::Memory: // There can be more than one GPU region mapped per CPU region, so it's common // that this area is already unmarked as cached. @@ -789,12 +664,11 @@ void Memory::UnmapRegion(Common::PageTable& page_table, VAddr base, u64 size) { impl->UnmapRegion(page_table, base, size); } -bool Memory::IsValidVirtualAddress(const Kernel::KProcess& process, const VAddr vaddr) const { - return impl->IsValidVirtualAddress(process, vaddr); -} - bool Memory::IsValidVirtualAddress(const VAddr vaddr) const { - return impl->IsValidVirtualAddress(vaddr); + const Kernel::KProcess& process = *system.CurrentProcess(); + const auto& pageTable = process.PageTable().PageTableImpl(); + const auto [pointer, type] = pageTable.pointers[vaddr >> PAGE_BITS].PointerType(); + return pointer != nullptr || type == Common::PageType::RasterizerCachedMemory; } u8* Memory::GetPointer(VAddr vaddr) { @@ -863,64 +737,38 @@ std::string Memory::ReadCString(VAddr vaddr, std::size_t max_length) { void Memory::ReadBlock(const Kernel::KProcess& process, const VAddr src_addr, void* dest_buffer, const std::size_t size) { - impl->ReadBlock(process, src_addr, dest_buffer, size); + impl->ReadBlockImpl<false>(process, src_addr, dest_buffer, size); } void Memory::ReadBlock(const VAddr src_addr, void* dest_buffer, const std::size_t size) { impl->ReadBlock(src_addr, dest_buffer, size); } -void Memory::ReadBlockUnsafe(const Kernel::KProcess& process, const VAddr src_addr, - void* dest_buffer, const std::size_t size) { - impl->ReadBlockUnsafe(process, src_addr, dest_buffer, size); -} - void Memory::ReadBlockUnsafe(const VAddr src_addr, void* dest_buffer, const std::size_t size) { impl->ReadBlockUnsafe(src_addr, dest_buffer, size); } void Memory::WriteBlock(const Kernel::KProcess& process, VAddr dest_addr, const void* src_buffer, std::size_t size) { - impl->WriteBlock(process, dest_addr, src_buffer, size); + impl->WriteBlockImpl<false>(process, dest_addr, src_buffer, size); } void Memory::WriteBlock(const VAddr dest_addr, const void* src_buffer, const std::size_t size) { impl->WriteBlock(dest_addr, src_buffer, size); } -void Memory::WriteBlockUnsafe(const Kernel::KProcess& process, VAddr dest_addr, - const void* src_buffer, std::size_t size) { - impl->WriteBlockUnsafe(process, dest_addr, src_buffer, size); -} - void Memory::WriteBlockUnsafe(const VAddr dest_addr, const void* src_buffer, const std::size_t size) { impl->WriteBlockUnsafe(dest_addr, src_buffer, size); } -void Memory::ZeroBlock(const Kernel::KProcess& process, VAddr dest_addr, std::size_t size) { - impl->ZeroBlock(process, dest_addr, size); -} - -void Memory::ZeroBlock(VAddr dest_addr, std::size_t size) { - impl->ZeroBlock(dest_addr, size); -} - void Memory::CopyBlock(const Kernel::KProcess& process, VAddr dest_addr, VAddr src_addr, const std::size_t size) { impl->CopyBlock(process, dest_addr, src_addr, size); } -void Memory::CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size) { - impl->CopyBlock(dest_addr, src_addr, size); -} - void Memory::RasterizerMarkRegionCached(VAddr vaddr, u64 size, bool cached) { impl->RasterizerMarkRegionCached(vaddr, size, cached); } -bool IsKernelVirtualAddress(const VAddr vaddr) { - return KERNEL_REGION_VADDR <= vaddr && vaddr < KERNEL_REGION_END; -} - } // namespace Core::Memory diff --git a/src/core/memory.h b/src/core/memory.h index c91eeced9..9122cbab9 100644 --- a/src/core/memory.h +++ b/src/core/memory.h @@ -1,4 +1,4 @@ -// Copyright 2014 Citra Emulator Project +// Copyright 2021 Citra Emulator Project // Licensed under GPLv2 or any later version // Refer to the license.txt file included. @@ -39,11 +39,6 @@ enum : VAddr { /// Application stack DEFAULT_STACK_SIZE = 0x100000, - - /// Kernel Virtual Address Range - KERNEL_REGION_VADDR = 0xFFFFFF8000000000, - KERNEL_REGION_SIZE = 0x7FFFE00000, - KERNEL_REGION_END = KERNEL_REGION_VADDR + KERNEL_REGION_SIZE, }; /// Central class that handles all memory operations and state. @@ -56,7 +51,7 @@ public: Memory& operator=(const Memory&) = delete; Memory(Memory&&) = default; - Memory& operator=(Memory&&) = default; + Memory& operator=(Memory&&) = delete; /** * Resets the state of the Memory system. @@ -92,24 +87,13 @@ public: /** * Checks whether or not the supplied address is a valid virtual - * address for the given process. - * - * @param process The emulated process to check the address against. - * @param vaddr The virtual address to check the validity of. - * - * @returns True if the given virtual address is valid, false otherwise. - */ - bool IsValidVirtualAddress(const Kernel::KProcess& process, VAddr vaddr) const; - - /** - * Checks whether or not the supplied address is a valid virtual * address for the current process. * * @param vaddr The virtual address to check the validity of. * * @returns True if the given virtual address is valid, false otherwise. */ - bool IsValidVirtualAddress(VAddr vaddr) const; + [[nodiscard]] bool IsValidVirtualAddress(VAddr vaddr) const; /** * Gets a pointer to the given address. @@ -134,7 +118,7 @@ public: * @returns The pointer to the given address, if the address is valid. * If the address is not valid, nullptr will be returned. */ - const u8* GetPointer(VAddr vaddr) const; + [[nodiscard]] const u8* GetPointer(VAddr vaddr) const; template <typename T> const T* GetPointer(VAddr vaddr) const { @@ -328,27 +312,6 @@ public: std::size_t size); /** - * Reads a contiguous block of bytes from a specified process' address space. - * This unsafe version does not trigger GPU flushing. - * - * @param process The process to read the data from. - * @param src_addr The virtual address to begin reading from. - * @param dest_buffer The buffer to place the read bytes into. - * @param size The amount of data to read, in bytes. - * - * @note If a size of 0 is specified, then this function reads nothing and - * no attempts to access memory are made at all. - * - * @pre dest_buffer must be at least size bytes in length, otherwise a - * buffer overrun will occur. - * - * @post The range [dest_buffer, size) contains the read bytes from the - * process' address space. - */ - void ReadBlockUnsafe(const Kernel::KProcess& process, VAddr src_addr, void* dest_buffer, - std::size_t size); - - /** * Reads a contiguous block of bytes from the current process' address space. * * @param src_addr The virtual address to begin reading from. @@ -409,26 +372,6 @@ public: std::size_t size); /** - * Writes a range of bytes into a given process' address space at the specified - * virtual address. - * This unsafe version does not invalidate GPU Memory. - * - * @param process The process to write data into the address space of. - * @param dest_addr The destination virtual address to begin writing the data at. - * @param src_buffer The data to write into the process' address space. - * @param size The size of the data to write, in bytes. - * - * @post The address range [dest_addr, size) in the process' address space - * contains the data that was within src_buffer. - * - * @post If an attempt is made to write into an unmapped region of memory, the writes - * will be ignored and an error will be logged. - * - */ - void WriteBlockUnsafe(const Kernel::KProcess& process, VAddr dest_addr, const void* src_buffer, - std::size_t size); - - /** * Writes a range of bytes into the current process' address space at the specified * virtual address. * @@ -468,29 +411,6 @@ public: void WriteBlockUnsafe(VAddr dest_addr, const void* src_buffer, std::size_t size); /** - * Fills the specified address range within a process' address space with zeroes. - * - * @param process The process that will have a portion of its memory zeroed out. - * @param dest_addr The starting virtual address of the range to zero out. - * @param size The size of the address range to zero out, in bytes. - * - * @post The range [dest_addr, size) within the process' address space is - * filled with zeroes. - */ - void ZeroBlock(const Kernel::KProcess& process, VAddr dest_addr, std::size_t size); - - /** - * Fills the specified address range within the current process' address space with zeroes. - * - * @param dest_addr The starting virtual address of the range to zero out. - * @param size The size of the address range to zero out, in bytes. - * - * @post The range [dest_addr, size) within the current process' address space is - * filled with zeroes. - */ - void ZeroBlock(VAddr dest_addr, std::size_t size); - - /** * Copies data within a process' address space to another location within the * same address space. * @@ -506,19 +426,6 @@ public: std::size_t size); /** - * Copies data within the current process' address space to another location within the - * same address space. - * - * @param dest_addr The destination virtual address to begin copying the data into. - * @param src_addr The source virtual address to begin copying the data from. - * @param size The size of the data to copy, in bytes. - * - * @post The range [dest_addr, size) within the current process' address space - * contains the same data within the range [src_addr, size). - */ - void CopyBlock(VAddr dest_addr, VAddr src_addr, std::size_t size); - - /** * Marks each page within the specified address range as cached or uncached. * * @param vaddr The virtual address indicating the start of the address range. @@ -535,7 +442,4 @@ private: std::unique_ptr<Impl> impl; }; -/// Determines if the given VAddr is a kernel address -bool IsKernelVirtualAddress(VAddr vaddr); - } // namespace Core::Memory |